When Should You Still Use Macros in Modern C ?

When to Consider Macros in C

Despite their reputation for pitfalls, macros can still serve beneficial purposes in C . While modern C provides safer alternatives like in-line functions, consts, and templates, there are specific scenarios where macros remain indispensable.

Debug Function Wrappers with Contextual Information:

Macros can act as wrappers for debug functions, automatically injecting contextual information like FILE and __LINE__. This is useful for tracing code execution and debugging purposes:

Since C 20, however, the std::source_location type can be used as a normal function to achieve a similar functionality without relying on macros.

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